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post #7 of (permalink) Old 11-30-2012
nsadams87xx's Avatar
Joined: Mar 2011
Location: Milwaukee
Posts: 3,124
Originally Posted by Grimace427 View Post
jw = Just wondering?

No hp gain from the Boss sidepipes as far as I know. 6-8hp isn't going to be noticeable and would be within the margin of error on a dyno, especially a supercharged car.

You're right. Boss sidepipes = nothing. The shape of the pipes causes a high pressure system anyway that restricts flow out the openings in the first place. Yes, exhaust still exists but doesn't affect real world flow.
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